Fix build
diff --git a/src/hb-directwrite.cc b/src/hb-directwrite.cc
index e93cf90..e348146 100644
--- a/src/hb-directwrite.cc
+++ b/src/hb-directwrite.cc
@@ -516,7 +516,6 @@
 {
   hb_face_t *face = font->face;
   const hb_directwrite_face_data_t *face_data = face->data.directwrite;
-  const hb_directwrite_font_data_t *font_data = font->data.directwrite;
   IDWriteFactory *dwriteFactory = face_data->dwriteFactory;
   IDWriteFontFace *fontFace = face_data->fontFace;